package cn.edu.jxnu.examples.io;

import org.junit.Test;

import java.io.IOException;
import java.nio.channels.FileChannel;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;

/**
 * @ClassName: NIODemo3.java
 * @author Mr.Li
 * @Description: 通道之间的数据传输(直接缓冲区)
 */
public class NIODemo3 {

	@Test
	public void test3() throws IOException {
		FileChannel inChannel = FileChannel.open(Paths.get("g:/复杂度.png"),
				StandardOpenOption.READ);
		FileChannel outChannel = FileChannel.open(
				Paths.get("g:/JAVA_PROJECT/复杂度.png"), StandardOpenOption.WRITE,
				StandardOpenOption.READ, StandardOpenOption.CREATE);

		// inChannel.transferTo(0, inChannel.size(), outChannel);
		outChannel.transferFrom(inChannel, 0, inChannel.size());

		inChannel.close();
		outChannel.close();
	}
}
